CA2452349A1 - System and method for post filtering peak power reduction in multi-carrier communications systems - Google Patents

System and method for post filtering peak power reduction in multi-carrier communications systems Download PDF

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Publication number
CA2452349A1
CA2452349A1 CA002452349A CA2452349A CA2452349A1 CA 2452349 A1 CA2452349 A1 CA 2452349A1 CA 002452349 A CA002452349 A CA 002452349A CA 2452349 A CA2452349 A CA 2452349A CA 2452349 A1 CA2452349 A1 CA 2452349A1
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CA
Canada
Prior art keywords
signal
peak reduction
post filtering
peak power
communications systems
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
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CA002452349A
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French (fr)
Other versions
CA2452349C (en
Inventor
Matthew J. Hunton
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Intel Corp
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of CA2452349A1 publication Critical patent/CA2452349A1/en
Application granted granted Critical
Publication of CA2452349C publication Critical patent/CA2452349C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects

Abstract

A system and method for post filtering signal peak reduction (110) adapted for use in a multi-carrier communication system incorporating a source of a multi-carrier communication signal band limited in plural bands corresponding to the plural carriers. A first signal path (120) receives as an input the band limited multi-carrier communication signal. A second parallel signal path includes a peak reduction calculation circuit (140) for calculating a peak reduction correction signal and a plurality of filters (170) providing a plurality of parallel filtering operations on the peak reduction correction signal corresponding to the plural bands to which the communication system is limited. The filtered peak reduction correction signals and delayed input signal are combined to provide peak adjusted output signals without violating the band limits of the communication signal or the modulation scheme of the communication signal.
CA002452349A 2001-08-02 2002-07-30 System and method for post filtering peak power reduction in multi-carrier communications systems Expired - Lifetime CA2452349C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US30957101P 2001-08-02 2001-08-02
US60/309,571 2001-08-02
US10/127,164 US7095798B2 (en) 2001-08-02 2002-04-22 System and method for post filtering peak power reduction in multi-carrier communications systems
US10/127,164 2002-04-22
PCT/US2002/024041 WO2003013081A1 (en) 2001-08-02 2002-07-30 System and method for post filtering peak power reduction in multi-carrier communications systems

Publications (2)

Publication Number Publication Date
CA2452349A1 true CA2452349A1 (en) 2003-02-13
CA2452349C CA2452349C (en) 2008-09-23

Family

ID=26825391

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002452349A Expired - Lifetime CA2452349C (en) 2001-08-02 2002-07-30 System and method for post filtering peak power reduction in multi-carrier communications systems

Country Status (6)

Country Link
US (1) US7095798B2 (en)
EP (2) EP1415448B1 (en)
KR (1) KR100647031B1 (en)
CN (1) CN100583847C (en)
CA (1) CA2452349C (en)
WO (1) WO2003013081A1 (en)

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Also Published As

Publication number Publication date
KR100647031B1 (en) 2006-11-23
EP1415448B1 (en) 2017-08-23
CN1640081A (en) 2005-07-13
EP3270558B1 (en) 2019-03-27
KR20040015382A (en) 2004-02-18
CA2452349C (en) 2008-09-23
EP1415448A4 (en) 2008-07-02
US7095798B2 (en) 2006-08-22
US20030026351A1 (en) 2003-02-06
EP1415448A1 (en) 2004-05-06
WO2003013081A1 (en) 2003-02-13
EP3270558A1 (en) 2018-01-17
CN100583847C (en) 2010-01-20

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